{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53138", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:24.996Z", "datePublished": "2024-12-04T14:20:43.395Z", "dateUpdated": "2026-08-05T11:44:01.599Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:44:01.599Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: kTLS, Fix incorrect page refcounting\n\nThe kTLS tx handling code is using a mix of get_page() and\npage_ref_inc() APIs to increment the page reference. But on the release\npath (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.\n\nThis is an issue when using pages from large folios: the get_page()\nreferences are stored on the folio page while the page_ref_inc()\nreferences are stored directly in the given page. On release the folio\npage will be dereferenced too many times.\n\nThis was found while doing kTLS testing with sendfile() + ZC when the\nserved file was read from NFS on a kernel with NFS large folios support\n(commit 49b29a573da8 (\"nfs: add support for large folios\"))." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - The vulnerable resync/DUMP path is entered only when a TCP segment is retransmitted on a kTLS-offloaded connection (`priv_tx->expected_seq != seq`), and retransmission behavior is dictated entirely by the remote TLS peer's ACK/SACK behavior. A remote client of an mlx5e kTLS-offloaded TLS server reaches this code purely by sending network traffic, with no local access.\nAC:L - Once a client requests a sendfile()-served object, forcing retransmissions by dropping segments or withholding ACKs is trivially and repeatedly achievable, and the refcount over-decrement is deterministic (n=3 for the default 1500-byte MTU with 4K pages) rather than racy. No memory layout or timing condition outside the attacker's control must be won.\nPR:N - A public TLS/HTTPS endpoint accepts connections from anyone; no credentials, account, or local privileges are needed to open a connection, request a file, and manipulate the TCP ACK stream. The attacker acts purely as an ordinary remote TLS client.\nUI:N - The attacker drives the entire sequence — connect, request data, suppress ACKs — with no action required from any local user or administrator beyond the server already running its normal kTLS-offloaded workload.\nS:U - The corruption is of kernel page-cache refcounts and kernel memory, all within the host kernel's own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The folio refcount underflow frees an in-use page-cache folio that is still in the address_space and still referenced by TLS record frags and the retransmit queue; once the physical page is reallocated, its new contents (other tenants' file data, anonymous memory, or kernel objects) can be transmitted back over the attacker's own TLS connection, giving a broad memory-disclosure primitive.\nI:H - The same premature free gives a write primitive — page-cache writeback and continued DMA/TLS use write into memory that has been reallocated to other kernel objects, which is the classic UAF heap-spray path to control-flow hijack. The tail page's raw `_refcount` is also left permanently corrupted.\nA:H - Refcount underflow on a live folio trips `VM_BUG_ON_FOLIO`/`bad_page()` and frees memory that is still in use, producing oopses, page-allocator corruption, and kernel panic; the attacker can repeat this at will over many connections." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c" ], "versions": [ { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "a0ddb20a748b122ea86003485f7992fa5e84cc95", "status": "affected", "versionType": "git" }, { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "ffad2ac8c859c1c1a981fe9c4f7ff925db684a43", "status": "affected", "versionType": "git" }, { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e", "status": "affected", "versionType": "git" }, { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "69fbd07f17b0fdaf8970bc705f5bf115c297839d", "status": "affected", "versionType": "git" }, { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "93a14620b97c911489a5b008782f3d9b0c4aeff4", "status": "affected", "versionType": "git" }, { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "2723e8b2cbd486cb96e5a61b22473f7fd62e18df", "status": "affected", "versionType": "git" }, { "version": "84d1bb2b139e0184b1754aa1b5776186b475fce8", "lessThan": "dd6e972cc5890d91d6749bb48e3912721c4e4b25", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c" ], "versions": [ { "version": "5.4", "status": "affected" }, { "version": "0", "lessThan": "5.4", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.287", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.231", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.174", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.119", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.63", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.10", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.4.287" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.10.231" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.15.174" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.1.119" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.6.63" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.11.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a0ddb20a748b122ea86003485f7992fa5e84cc95" }, { "url": "https://git.kernel.org/stable/c/ffad2ac8c859c1c1a981fe9c4f7ff925db684a43" }, { "url": "https://git.kernel.org/stable/c/c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e" }, { "url": "https://git.kernel.org/stable/c/69fbd07f17b0fdaf8970bc705f5bf115c297839d" }, { "url": "https://git.kernel.org/stable/c/93a14620b97c911489a5b008782f3d9b0c4aeff4" }, { "url": "https://git.kernel.org/stable/c/2723e8b2cbd486cb96e5a61b22473f7fd62e18df" }, { "url": "https://git.kernel.org/stable/c/dd6e972cc5890d91d6749bb48e3912721c4e4b25" } ], "title": "net/mlx5e: kTLS, Fix incorrect page refcounting", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:29:40.765Z" } } ] } }